1. Study on the Mechanism of Leguminous Crops Adapting to Acidic Phosphorus-deficient Red Soil, Science Fund Project of Guangdong Science and Technology Commission, 1993- 1996, has been completed.

2. Completed the Guangdong Natural Science Foundation project 1993- 1997 Genetic analysis and gene mapping of rice salt tolerance.

3. RFLP/RAPD linkage mapping of salt-tolerant genes in rice funded by Rockefeller Foundation (1995- 1997, completed).

4. The basic research on morphology, physiology and biochemistry of genotypic differences in phosphorus efficiency of kidney bean in acid red soil, supported by the National Natural Science Foundation project 1996- 1999, has been completed.

5. Effect of cell size and root configuration of kidney bean on phosphorus efficiency, an international cooperation project of National Natural Science Foundation of China-University of Pennsylvania, 1996- 1997, has been completed.

6. With the support of Fok Ying Tung Education Fund Project 1996- 1999 of the State Education Commission, the genetic difference and mechanism of kidney bean tolerance to low phosphorus in soil were studied.

7. Genetic improvement of plant nutritional traits, supported by the Cross-century Talents Fund of the State Education Commission, 1996- 1999.

8. The key scientific research project of Guangdong Science and Technology Commission 1996-2000 "Study on Adaptability of Soybean to Acidic Phosphorus-deficient Red Soil in South China" has been completed.

9. Genetic analysis of rice phosphorus efficiency and molecular mapping of its genes, Guangdong Thousand Hundred and Ten Projects Excellent Talents Training Fund Project, 1997- 1999, has been completed.

10. Study on the application effect of phosphate rock powder on fruit trees, cooperative project with IMPHOS, 1998-200 1.

1 1. Basic research on root biology of soybean germplasm adapted to phosphorus-deficient soil, doctoral fund of the Ministry of Education, 1999-2002.

12. Study on the Physiological and Genetic Basis of Root Architecture of Kidney Bean, NRI Project of US Department of Agriculture, 1999-2002 (cooperative project with Pennsylvania State University, USA).

13. Isolation, identification and control gene mapping of low phosphorus tolerance specific root exudates of kidney beans, National Natural Science Foundation of China, 2000-2002.

14. Quantitative analysis and basic research on molecular biology of changes in plant root architecture induced by phosphorus stress, National Science Foundation for Distinguished Young Scholars (2000-2003)

15. Quantitative description of plant root architecture changes induced by water and nutrients and location and cloning of related genes, a sub-project of the National Major Basic Research Project (973 Project), 1999-2004.